Smoke and soot eliminator



Dec. 28, 1948.V R. F. WILLIAMS 2,457,292

SMOKE AND SOOT ELIMINATOR Filed Feb. 27, 1946 Vql\\\\ \\\l\\ q 5" t a 15 a5 Arryw Patented Dec. 28, 1948 UNITED STAT-ES PATENT OFFICE SMOKE ANp soofr ELIMINATOR Roger F. Williams, Des Moines, Iowa Application February 27, 1946, Serial No. 650,654 2 claims. (c1. iss-110) The principal object of my invention is to provide a device for eliminating excess smoke and soot extruding fromy furnaces and like combustion chambers.

A further object of this invention is to provide an excessive smoke control that is o f simple construction and easily installed.V

A still further object of thisinvention is to provide a smoke and soot control that salvages the soot and other combustible matter for useful purposes.

A sti-ll further object of my invention is to provide a device for eliminating undesirable smoke and soot from furnaces and like that is economical in manufacture and durable in use. v

These and other objects will be apparent to those skilled in the art.

My invention consists in the construction, arrangement and combination of the various parts of the device, whereby the objects contemplated are attained as hereinafter more fully set forth, pointed out in my claims and illustrated in the accompanying drawings, in which: l p l Fig. l is a side view of my device with sections cut away to more fully illustrate its interior construction.

Fig. 2 is a cross-sectional view of the device taken on line 2--2 of Fig. l.

The damage caused by excessive smoke in cities and industrial areas is one of the problems of modern times. Local smoke abatement regulations have proven ineiective and elaborate and complicated smoke reduction equipment is impossible for the average installation. Due to the simplicity of my device it is particularly adapted for store, factory, hotel, and like use.

In the drawings I have used the numeral Il! to designate a conventional combustion chamber in which coal, wood, or like is burned. The numeral II designates the usual smoke and hot gases outlet pipe. It is to such an installation that I attach my smoke and soot control device. I2 designates an elongated horizontal housing having a plurality of spaced apart vertical baille walls I3 rising from its inside bottom and terminating some distance from its inside top,`as shown in the drawings. The numeral I4 designates a compartment having a downwardly and rearwardly extending bottom and communicating with the outside bottom of the housing I2. The numeral I5 designates an opening in the bottom of the housing forward of each of the baille walls I3 and communicating with the inside of the compartment I4. I6 designates a pipe communieating with the pipe Il and the rear end ofthe housing I2. The'numeral II designates a fan and fan housing communicating with the pipe I6. I8 designates an electric motor operatively connected to the fan. I9 designates a pipe having `one end communicating with the forward end ofthe housing I 2 at a plane below the upper edges of the walls I3 and its other end communieating with a chimney 2B. The numeral 2| designates a downwardly extending outlet pipe communicating with the inside bottom of the compartment I4 cap-able of being closed by a gate or like valve 22. The numeral 23 designates a pipe having one end communicating with the inside bottom of the compartment I4 and the inside of the combustion chamber I0. This pipe is capabie of being closed or opened by the gate or like valve 24. 'Ihe baille walls I3 may be of impervious construction but in one of them I show openings 25, as shown in Fig. 2, to encourage uneven flowing of the hot gases through the device. The baille walls I3 may be unevenly spaced apart to increase vortex within the housing and I preferably space them closer together as they progress forwardly within the housing.

The practical operation of my device is as follows: The hot gases from the combustion chamber laden with smoke and soot particles pass into the rear end of the housing I2 and swirl over and downwardly of each of the baffle walls I3 as the same progress forwardly through the housing I2 and to the chimney 20. This uneven ilow of the gases will cause a dead space forward of the lower portions of each of the baille walls and the lsoot and like smoke particles will drift into and collect forward of each of the baille walls. This collection of particles will by gravity fall through the openings I5 provided in the bottom of the housing and into the compartment I4. By the time the gases reach the forward end of the housing the soot and smoke particles will have been substantially separated from the gases and collected within the compartment I4 from which they will pass into the pipes '2| and 23. If desired, the gate 24 may be closed, the gate 22 opened, and this collected matter salvaged for useful industrial purposes. It has been found that most soot and smoke particles are combustible for soot and smoke particles are caused by improper combustion within the combustion chamber. If desired, the gate 22 may be closed and the gate 24 opened, thereby permitting this combustible material to return to the combustion chamber for consumption, thereby making the furnace or like more eicient. In most installainside said housing each extendingfrom'thebottom of said housing and terminating a distance from the top of said housing to provi'deastraight uninterrupted flow of gases., above them,` sont outlet openings in the bottom of said housing, a conduit communicating with the insideof said housing at a point below the top planes of said baite-Walls and its otherend-communicating with the iinside yof a combustion -chamber, an outlet pipehaving one end communicatinglwiththe outsideatmosphere `and its other end communicating `with the inside of --said housing at a point below the top planesofsaid baflie Walls, a co1- lecting compartment von the Vbottom of `Ysaid housing communicating with -said openings land hav-ing" its bottom eslopingftoward and communicatingwith the inside of Vsaid combustionchamber, a lirleans `lfor closing the tinside of `saiii collecting compartment from said combustion chamber at times, an outlet conduitcommunieating -with thein'side bottom `o'f said `vx-:ollectin'g compartment-anda means `'ior'closingsaid lastmentioned conduit at times.

-2. In a device of the class describedf-ahousing, a -plurality of spaced'apart vertical tbaiiie walls insidev said housing `each extendingffrom'the bottom of said housing Aand terminating vanis-tance from the top of saidhousing to provide a straight uninterrupted ow of gases above Ithem, soot outlet openings infthebottom ofisaidhousing, a conduit communicating with the :inside of `said housing at a point below the top planes of said baie Walls and its other end communicating with the inside of a combustion chamber, an outlet pipe having one end communicating With the outside atmosphere and its other end communicating with the inside of said housing at a point below the top planes of said baiile walls, a co1- lecting compartment on the bottom of said housing communicating with said openings and havingiitsbottom sloping toward: and acommunieating with the inside of Vsaid combustion chamber, a means for closing the inside of said co1- lecting compartment from said combustion chambergat "times, an outlet conduit communieating with the inside bottom of said collecting compartment, "a means for closing said lastmention'ed lconduit fat times, a power means communicating with the inside of said rstmentioned conduit for inducing the movement of gasses through the salme and into said housing, and passageways in at least `one of said ba'ielwails.

REFERENCES CITED The following references-are of record :in .the iiieof thispatent:

' UNITED :STATES liPA-".EEl\I".FS

Number AName Date 324,440 Wheeler .Aug.18,"188'5 '416,889 Barnard "Dec.,1'0,'I889 '554,945 Moifet Feb..18, 1896 688,693 Richter Dec. "I0, '1901 1,438,61 1 Ryerson Dec. 12,1922 '1,541,117 'Cochran Junef`9, 1925l 1,541,650 Matheson .June 9, '1925 FOREIGN PAIENTS- Number Country Date 464 4Great Britain `1904 `309,045 'GreatfBritain Apr. 17,'1'930 585,192 Germany Sept. '14, 1933 

